body {
  margin: 0;
  padding: 0;
}

nav {
  background: #f5f5f5;
  user-select: none;
}
.navbar{
  user-select: none;
  height: 80px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.navname{
  user-select: none;
  height: 80px;
  width: 350px;
  font-size: 40px;
  text-align: center;
  line-height: 100px;
  font-weight: bold;
  color: #125530;
}
.navgations{
  user-select: none;
  height: 80px;
  width: 700px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.navitems{
  user-select: none;
  cursor: pointer;
  height: 80px;
  width: 80px;
  font-size: 16px;
  text-align: center;
  line-height: 80px;
  color: #000000
}
.downarrow {
  user-select: none;
  display: inline;
  position: relative;
  top: 13px;
  left: 5px;
  border-left: 3px solid transparent;
  border-right: 3px solid transparent;
  border-top: 5px solid #695c5c;
}
a:link {color: #000000}     /* 未访问的链接 */
a:visited {color: #000000}  /* 已访问的链接 */
a:hover {color: #000000}    /* 当有鼠标悬停在链接上 */
a:active {color: #125530}   /* 被选择的链接 */
a{
  text-decoration:none
}
